.top_nav{
    position: absolute;
    top:0;
    left: 0;
    right: 0;
    height: 50px;
    width:100%;
    background-color: $greenstylecolor;
    color:#fff;
    .navbar-header{
        float: left;
    }
    .navbar-brand{
        img{border:none;}
    }
    .top_content{
        padding-left: 15px;
        padding-right: 15px;
        .top_content_menu{
            float: left;
            margin: 0px;
            li{
                float: left;
                margin: 0px;
                padding: 0px;
                text-decoration: none;
                list-style: none;
                a{
                    box-sizing: border-box;
                    width: 100px;
                    text-align: center;
                    font-size: 12px;
                    display: block;
                    height: 50px;
                    line-height: 50px;
                    color: #FFF;
                    text-decoration: none;
                    background-color: transparent;
                }
            }
        }
        .top_content_user{
            float: right;
            margin-top: 20px;
            li{z-index: 11;}
        }
        .top_content_mail{
            float: right;
            margin-top: 20px;
            margin-right: 20px;
        }
    }
}